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Vol. 7. Núm. 2.
Páginas 96-103 (junio 2006)
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Vol. 7. Núm. 2.
Páginas 96-103 (junio 2006)
Acceso a texto completo
Teriparatida
Visitas
14923
Xavier Nogués Solán, Monica Payés Peich, Lidia García Gibert
Unitat de Recerca en Fisiopatología Òssia i Articular. Servei de Medicina Interna. Hospital del Mar. Institut Municipal d’Investigació Mèdica. Universitat Autònoma de Barcelona. Barcelona. España
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Resumen

La teriparatida es el primer fármaco anabolizante eficaz en el tratamiento de la osteoporosis. La administración intermitente de paratirina (PTH) induce la aparición de pulsos de adenosinmonofosfato cíclico que causan la proliferación y la diferenciación de los osteoprogenitores. La teriparatida, fragmento de la PTH (1-34), ha demostrado en diversos estudios en mujeres posmenopáusicas, osteoporosis del varón y corticoides que es un fármaco eficaz para el tratamiento de la osteoporosis establecida. El riesgo relativo de sufrir una nueva fractura vertebral disminuye entre el 65 y el 69%, con aumentos de masa ósea entre el 9 y el 11%, similares a los que se obtiene con los bisfosfonatos a largo plazo, como el alendronato y el risedronato a 7 años. Además, estudios recientes demuestran que con el tratamiento durante 2 años con bisfosfonatos tras la teriparatida los aumentos de masa ósea llegan al 23,6%. Su indicación en nuestro país se reduce a la osteoporosis posmenopáusica establecida, es decir con fracturas.

Palabras clave:
Teriparatida
PTH
Osteoporosis
Masa ósea
Fracturas
Abstract

Teriparatide is considered the first anabolic drug to treat established osteoporosis. Intermittent administration of Pth leads to cAMP presence that produces proliferation and differentiation of progenitors. Teriparatide, a 1-34 PTH fragment, has demonstrated in several studies in postmenopausal women, men osteoporosis and corticosteroid-induced osteoporosis its efficacy to treat osteoporosis. The risk of having a new vertebral fracture decreases between 65% to 69%, and the increase of bone mass ranges between 9% to 11%. This is similar to the range reached by bisphosphonates as alendronate and risedronate at 7 years of treatment. Moreover, recent studies have shown that a secuential treatment with bisphosphonates and teriparatide the increase of bone mass reaches 23,6%. The prescription of teriparatide in Spain is only for postmenopausal establish osteoporosis, that means with fractures.

Key words:
Teriparatide
PTH
Osteoporosis
Bone mass
Fracture
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Copyright © 2006. Sociedad Española de Reumatología
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